DCR is an acronym that may refer to:
- Dark Crisis, a ! Trading Card Game]] booster pack
- Design Change Request, also Document Change Request and Database Change Request
- Debt Coverage Ratio, another term for Debt service coverage ratio (DSCR)
- Digital cable ready
- Department of Conservation and Recreation (Massachusetts)
- Dubois County Railroad
- Durham College Rowing
- Dynamic Compression Ratio
- Dynamic Contrast Ratio
- Distributed Constraint Reasoning
- Device control register
- Division Cuirassée de Réserve – a French armoured division in the Battle of France, 1940
- Dacryocystorhinostomy – a surgical procedure
- DCR – operating system command. Used like a cct, dir, cst
- Decision Composite Residuosity in Cryptography
- DC Resistance of an inductor
- Dropped Call Rate, a term in telecommunications denoting the percentage of calls which due to technical reasons were cut off before the speaking parties had finished their conversation and before one of them had hung up
- Dual Cycle Rifle